So I have a c33 laurel swapped stock rb25det built myself and been running for a year with no issues, Couple months ago my car started to just shut off while driving no pattern emerged as to when or why, would just be completely random. Sometimes would go days without doing it sometimes 3/4 times a day. All I would have to do is just turn the key off and back on and she would fire straight back up.
Then progressively got worse and I’d have to turn they key a couple of times. Then got to the point it wouldn’t fire, I assume electrical but Ive got no idea where to start looking.
Basically when it happens I loose all dash lights after a split second, ecu still has power, radio still works, windows work, car turns over, fuel pump doesn’t prime.
so far I have tested every relay i could find in the car except fuel pump, pulled ever fuse, gone over all loom given it a shake to try source a possible loose connection or break in wire and found nothing
im thinking it could possible be my alarm but was installed by previous owner and wouldn’t know where to start. Completely stummed and would love to pick your guys brains to get her back up and running for summer
cheers in advance for any help ??